Variation: y varies inversely as x, y = 10 when x = 25

[sharjackson]

Find a equation of variation in which y varies inversely as x, and y = 10 when x = 25

I came up with y = 250/x

 

[stapel]

Find a equation of variation in which y varies inversely as x...

This part gives you the variation equation, "y = k/x".

...and y = 10 when x = 25

Plugging these values in, you can solve for k:

. . . . .10 = k/25

. . . . .250 = k

[quote="sharjackson]I came up with y = 250/x[/quote]
Exactly right! Good work!

Eliz.